97 Altima P0400 & P0325 - Nissan Forums : Nissan Forum
 
LinkBack Thread Tools Display Modes
  #1  
Old 11-17-2008, 02:48 PM
Eddiestar Eddiestar is offline
Registered User
 
Join Date: Nov 2008
Posts: 11
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Thanks: 0
Thanked 0 Times in 0 Posts
iTrader: 0 reviews
97 Altima P0400 & P0325

I recently did an intake manifold gasket repair for a P0304 (cylinder 4 misfire). I put it all back together and now I am getting a P0400 (insufficient egr flow) and a P0325 (Knock Sensor). I tried cleaning the egr because I read in a forum that a knock sensor code usually comes with another code, so they said to focus on the EGR. I removed the egr and applied vacuum it holds. I did the checks on the BPT and it as well holds vacuum. i even checked the solenoid valve and it is also working properly. I am stumped and I need some suggestions from someone who did the job and got the same codes or someone who knows why the codes appeared. Thanks in advance.
Sponsored Links
Advertisement
 
  #2  
Old 11-17-2008, 05:30 PM
jserrano jserrano is offline
The Don.
 
Join Date: Jul 2002
Location: Northern VA
Posts: 6,118
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Thanks: 2
Thanked 41 Times in 28 Posts
iTrader: 1 reviews
You need to get the engine warmed up and then sense the diaphragm from underneath the EGR valve. Next softly raised and lower the engine around the 2000 rpm point. If you get very little to no movement then you've confirmed an EGR problem. I've written extensively on this stuff so do a search and hopefully that will help. If not, then just post back.

For the KS, you'll likely have to replace it.



'94 Nissan Altima SE, 5spd. Ultra Red (AJ4).
Erebuni 905, Turboing, Hotshot CAI, UR Pulley, Calum ECU,
HUD & ATC retrofitted, DEPO lamps /w Silverstars, NGK Ignition wires.
ITEMS FOR SALE
  #3  
Old 11-21-2008, 04:35 PM
Eddiestar Eddiestar is offline
Registered User
 
Join Date: Nov 2008
Posts: 11
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Thanks: 0
Thanked 0 Times in 0 Posts
iTrader: 0 reviews
Fixed P0400 and P0325 codes I Hope



I had the two vacuum lines backwards so the EGR wasn't getting movement under load of the motor. I had the green which is "C" I believe swapped with the gray which is "B" I believe. The "C" is supposed to have vacuum under load of the motor and didn't. Instead "B" had the load. I read in your forum and I found it. Thanks for all the help JSERRANO you are the best.
  #4  
Old 11-21-2008, 06:44 PM
jserrano jserrano is offline
The Don.
 
Join Date: Jul 2002
Location: Northern VA
Posts: 6,118
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Thanks: 2
Thanked 41 Times in 28 Posts
iTrader: 1 reviews
Nice to hear you fixed it. And thanks for coming back to explain what was wrong. Cheers.



'94 Nissan Altima SE, 5spd. Ultra Red (AJ4).
Erebuni 905, Turboing, Hotshot CAI, UR Pulley, Calum ECU,
HUD & ATC retrofitted, DEPO lamps /w Silverstars, NGK Ignition wires.
ITEMS FOR SALE
  #5  
Old 11-21-2008, 07:15 PM
DexGTR's Avatar
DexGTR DexGTR is offline
Sleeper
 
Join Date: Oct 2008
Location: Houston, TX
Posts: 33
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Thanks: 0
Thanked 0 Times in 0 Posts
iTrader: 0 reviews
i need to the intake manifold gasket replacement...and this is a good thing to watch out for...i'll prolly get some tape and label each ends so that i'll know which part comes together when it's time to put it all back together.

93 Altima SE (photchopped)
Sponsored Links
Advertisement
 
Reply

  Nissan Forums : Nissan Forum > Nissanclub.com Nissan - Infiniti Enthusiast Forums > NISSAN ALTIMA FORUMS > 1993-2001 Nissan Altima Forums > General Nissan Altima Discussion (1993-2001)

Quick Reply
Message:
Options

Register Now

In order to be able to post messages on the Nissan Forums : Nissan Forum forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.
User Name:
If you do not want to register, fill this field only and the name will be used as user name for your post.
Password
Please enter a password for your user account. Note that passwords are case-sensitive.
Password:
Confirm Password:
Email Address
Please enter a valid email address for yourself.
Email Address:

Log-in

Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.


<

User Tag List

Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page
Display Modes
Linear Mode Linear Mode



Posting Rules  
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On

 
For the best viewing experience please update your browser to Google Chrome